2112131253 has 16 divisors (see below), whose sum is σ = 2857510656. Its totient is φ = 1387545600.

The previous prime is 2112131243. The next prime is 2112131299. The reversal of 2112131253 is 3521312112.

It is a de Polignac number, because none of the positive numbers 2^k-2112131253 is a prime.

It is a super-2 number, since 2×2112131253² = 8922196859798700018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112131243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52228 + ... + 83378.

It is an arithmetic number, because the mean of its divisors is an integer number (178594416).

Almost surely, 2^2112131253 is an apocalyptic number.

It is an amenable number.

2112131253 is a deficient number, since it is larger than the sum of its proper divisors (745379403).

2112131253 is a wasteful number, since it uses less digits than its factorization.

2112131253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31484.

The product of its digits is 360, while the sum is 21.

The square root of 2112131253 is about 45957.9291635296. The cubic root of 2112131253 is about 1283.0403096361.

Adding to 2112131253 its reverse (3521312112), we get a palindrome (5633443365).

The spelling of 2112131253 in words is "two billion, one hundred twelve million, one hundred thirty-one thousand, two hundred fifty-three".